Home / 163,731.90-245,672.37-79,446.54

Finding the Fourth Proportional to 163,731.90, 245,672.37 and 79,446.54

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Solution

The fourth proportional to 163,731.90, 245,672.37 and 79,446.54 is: 119,205.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,731.90 : 245,672.37 = 79,446.54 : x
  2. Step 2: Convert to fraction form
    163,731.90/245,672.37 = 79,446.54/x
  3. Step 3: Cross multiply
    163,731.90x = 245,672.37 × 79,446.54
  4. Step 4: Simplify right side
    163,731.90x = 19,517,819,770.10
  5. Step 5: Solve for x
    x = 19,517,819,770.10/163,731.90
  6. Step 6: Final answer
    x = 119,205.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.